Cigarette smoke contains more than 4,000 chemicals,When you smoke during pregnancy, that toxic brew gets into your bloodstream, your baby's only source of oxygen and nutrients.The two most harmful chemicals in tobacco are nicotine and monoxide.Nicotine and carbon monoxide work together to reduce the babes air supply. Nicotine reduces the air supply by narrowing the blood vessels through out the body including the umbilical cord witch is the baby's supply to everything.It is like making the baby breath through a small narrow straw.Now the red blood cells that carry the oxygen start to pick up carbon monoxide instead, this causes that narrow straw i was talking about not hold nearly enough oxygen to the baby through the umbilical cord. How will that effect your baby? a shortage of oxygen can have a drastic effect on your child's growth and development.smoking durring pregnancy doubles the chance that your child could be born premature and or weighing 5 1/2 pounds.Smoking tabaco during pregnancy also increases the chance of a stillbirth.Interesting facts
On average, a pack-a-day habit during pregnancy will shave about a half-pound from a baby's birth weight. Smoking two packs a day throughout your pregnancy could make your baby a full pound or more lighter.
Undersize babies tend to have underdeveloped bodies. Their lungs may not be ready to work on their own, which means they may spend their first days or weeks attached to a respirator.
Babies whose mother smoked in the first trimester of pregnancy are more likely to have a heart defect at birth.
Smoking during pregnancy can have lifelong effects on your baby's brain. Children of pregnant smokers are especially likely to have a learning disability , behaviour problems and relatively low IQs.
How will that effect your baby? a shortage of oxygen can have a drastic effect on your child's growth and development.smoking durring pregnancy doubles the chance that your child could be born premature and or weighing 5 1/2 pounds.Smoking tabaco during pregnancy also increases the chance of a stillbirth.Interesting facts
http://www.babycenter.com/0_how-smoking-during-pregnancy-affects-you-and-your-baby_1405720.bc